My new live with Walkman (WT19i) keep Restarting, How to fix it ?

I recently bought this unit, it keeps restarting. one of my friend also having the same problem. please help me to make this working. I cant even make a call it restarts while the call. Hope there will be a fix. please advice, I bought this by very hardly earn money.

Re: My new live with Walkman (WT19i) keep Restarting, How to fix it ?

Can you please provide me the below information from your mobile handset.

I may be able to help you.

1) Can you tell me where are you from and where did you buy the mobile handset from(city)?

2) Also go in the Settings menu and pls let me know the Baseband version.

Along wth the Baseband version you wil see many other information like Android version etc..

3) Also if you will open up the phone back cover and remove the battery you will find somewhere written under the battery and/or on the phone set, the handset manufacturing week and year in the format like '42/11' or '11/42' meaning 42nd week of 2011 or if its is 11/42 means in 2011

4) Also please tell the date of manufacture on the box of your mobile handset.